cosmetic: battery related stuff

.claude/settings.local.json

@@ -8,7 +8,10 @@
       "Bash(done)",
       "Bash(file:*)",
       "mcp__ide__getDiagnostics",
-      "Bash(python -m py_compile:*)"
+      "Bash(python -m py_compile:*)",
+      "WebSearch",
+      "WebFetch(domain:docs.waveshare.com)",
+      "WebFetch(domain:www.waveshare.com)"
     ]
   },
   "outputStyle": "iseri",

components/dashboard_ui/dashboard_ui.c

@@ -19,6 +19,7 @@
 /* Top bar */
 static lv_obj_t *lbl_ip;
 static lv_obj_t *lbl_batt;
+static lv_obj_t *lbl_batt_v;
 static lv_obj_t *bar_batt_top;
 static lv_obj_t *lbl_ws;
 
@@ -160,6 +161,13 @@ static void create_top_bar(lv_obj_t *parent)
     lv_obj_align(lbl_ws, LV_ALIGN_LEFT_MID, 140, 0);
     lv_label_set_text(lbl_ws, "WS:---");
 
+    /* Battery voltage — left of bar */
+    lbl_batt_v = lv_label_create(bar_cont);
+    lv_obj_set_style_text_color(lbl_batt_v, lv_color_white(), 0);
+    lv_obj_set_style_text_font(lbl_batt_v, &InziuIosevka_Slab_CC_12px, 0);
+    lv_obj_align(lbl_batt_v, LV_ALIGN_RIGHT_MID, -72, 0);
+    lv_label_set_text(lbl_batt_v, "-.--V");
+
     /* Battery bar (24x10) — right */
     bar_batt_top = lv_bar_create(bar_cont);
     lv_obj_set_size(bar_batt_top, 24, 10);
@@ -169,6 +177,17 @@ static void create_top_bar(lv_obj_t *parent)
     lv_obj_add_style(bar_batt_top, &style_bar_batt_bg, LV_PART_MAIN);
     lv_obj_add_style(bar_batt_top, &style_bar_batt_ind, LV_PART_INDICATOR);
 
+    /* Battery positive terminal nub */
+    lv_obj_t *batt_nub = lv_obj_create(bar_cont);
+    lv_obj_set_size(batt_nub, 2, 4);
+    lv_obj_align(batt_nub, LV_ALIGN_RIGHT_MID, -37, 0);
+    lv_obj_set_style_bg_color(batt_nub, lv_color_white(), 0);
+    lv_obj_set_style_bg_opa(batt_nub, LV_OPA_COVER, 0);
+    lv_obj_set_style_border_width(batt_nub, 0, 0);
+    lv_obj_set_style_radius(batt_nub, 0, 0);
+    lv_obj_set_style_pad_all(batt_nub, 0, 0);
+    lv_obj_clear_flag(batt_nub, LV_OBJ_FLAG_SCROLLABLE);
+
     /* Battery text — right of bar */
     lbl_batt = lv_label_create(bar_cont);
     lv_obj_set_style_text_color(lbl_batt, lv_color_white(), 0);
@@ -371,15 +390,19 @@ void dashboard_ui_update_stats(const pi_stats_t *stats)
     lv_label_set_text(lbl_net, net_buf);
 }
 
-void dashboard_ui_update_local(float temp, float humidity, uint8_t battery)
+void dashboard_ui_update_local(float temp, float humidity, uint8_t battery, bool charging, float voltage)
 {
     char buf[32];
 
     snprintf(buf, sizeof(buf), "T: %.1f H: %.0f%%", temp, humidity);
     lv_label_set_text(lbl_local, buf);
 
+    /* Update top bar battery voltage */
+    snprintf(buf, sizeof(buf), "%.2fV", voltage);
+    lv_label_set_text(lbl_batt_v, buf);
+
     /* Update top bar battery text + bar */
-    snprintf(buf, sizeof(buf), "%d%%", battery);
+    snprintf(buf, sizeof(buf), charging ? "%d%%C" : "%d%%", battery);
     lv_label_set_text(lbl_batt, buf);
     lv_bar_set_value(bar_batt_top, battery, LV_ANIM_OFF);
 }

components/dashboard_ui/dashboard_ui.h

@@ -21,7 +21,7 @@ void dashboard_ui_update_stats(const pi_stats_t *stats);
 /**
  * Update local sensor readings. LVGL lock must be held by caller.
  */
-void dashboard_ui_update_local(float temp, float humidity, uint8_t battery);
+void dashboard_ui_update_local(float temp, float humidity, uint8_t battery, bool charging, float voltage);
 
 /**
  * Update clock and date display. LVGL lock must be held by caller.

components/port_bsp/adc_bsp.cpp

@@ -48,3 +48,7 @@ uint8_t Adc_GetBatteryLevel() {
 	//ESP_LOGW("Battery","Voltage: %.3f V, Level: %.1f %%",vol,level);
     return (uint8_t)level;
 }
+
+bool Adc_IsCharging() {
+    return Adc_GetBatteryVoltage() > 4.10f;
+}

components/port_bsp/adc_bsp.h

@@ -4,4 +4,5 @@
 
 void Adc_PortInit();
 float Adc_GetBatteryVoltage();
-uint8_t Adc_GetBatteryLevel();
+uint8_t Adc_GetBatteryLevel();
+bool Adc_IsCharging();

components/user_app/alert.cpp

@@ -43,7 +43,7 @@ static const int s_beep_count[ALERT_TYPE_COUNT] = {
     0,  /* SERVICE_DOWN: triple beep */ /* DISABLED FOR TESTING */
     2,  /* HIGH_TEMP: double beep */
     0,  /* WS_DISCONNECT: single beep */ /* DISABLED FOR TESTING */
-    1,  /* CONNECT_OK: single short beep */
+    0,  /* CONNECT_OK: single short beep */ /* DISABLED FOR TESTING */
 };
 
 static void generate_tone_buffer(void)

components/user_app/user_app.cpp

@@ -219,10 +219,12 @@ static void sensor_task(void *arg)
             s_shtc3->Shtc3_ReadTempHumi(&temp, &humidity);
             s_shtc3->Shtc3_Sleep();
 
+            float batt_v = Adc_GetBatteryVoltage();
             uint8_t batt = Adc_GetBatteryLevel();
+            bool charging = Adc_IsCharging();
 
             if (Lvgl_lock(100)) {
-                dashboard_ui_update_local(temp, humidity, batt);
+                dashboard_ui_update_local(temp, humidity, batt, charging, batt_v);
                 Lvgl_unlock();
             }
         }